V8 Engine | Breaking Cybersecurity News | The Hacker News

Cybersecurity researchers are calling attention to an ongoing campaign that distributes fake cryptocurrency trading apps to deploy a compiled V8 JavaScript (JSC) malware called JSCEAL that can capture data such as credentials and wallets. The activity leverages thousands of malicious advertisements posted on Facebook in an attempt to redirect unsuspecting victims to counterfeit sites that instruct them to install the bogus apps, according to Check Point. These ads are shared either via stolen accounts or newly created ones. "The actors separate the installer's functionality into different components and most notably move some functionality to the JavaScript files inside the infected websites," the company said in an analysis. "A modular, multi-layered infection flow enables the attackers to adapt new tactics and payloads at every stage of the operation." It's worth noting that some aspects of the activity were previously documented by Microsoft in April 2...

Google has released security updates to address a vulnerability in its Chrome browser for which an exploit exists in the wild. The zero-day vulnerability, tracked as CVE-2025-6554 (CVSS score: 8.1), has been described as a type confusion flaw in the V8 JavaScript and WebAssembly engine. "Type confusion in V8 in Google Chrome prior to 138.0.7204.96 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page," according to a description of the bug on the NIST's National Vulnerability Database (NVD). Type confusion vulnerabilities can have severe consequences as they can be exploited to trigger unexpected software behavior, resulting in the execution of arbitrary code and program crashes. Zero-day bugs like this are especially risky because attackers often start using them before a fix is available. In real-world attacks, these flaws can let hackers install spyware, launch drive-by downloads, or quietly run harmful code — sometimes just by getting...

Google has rolled out security fixes to address a high-severity security flaw in its Chrome browser that it said has come under active exploitation in the wild. Tracked as CVE-2024-7971 , the vulnerability has been described as a type confusion bug in the V8 JavaScript and WebAssembly engine. "Type confusion in V8 in Google Chrome prior to 128.0.6613.84 allowed a remote attacker to exploit heap corruption via a crafted HTML page," according to a description of the bug in the NIST National Vulnerability Database (NVD). The Microsoft Threat Intelligence Center (MSTIC) and Microsoft Security Response Center (MSRC) have been credited with discovering and reporting the flaw on August 19, 2024. No additional details about the nature of the attacks exploiting the flaw or the identity of the threat actors that may be weaponizing it have been released, primarily to ensure that a majority of the users are updated with a fix. The tech giant, however, acknowledged in a terse sta...

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Google on Tuesday released an update for Chrome web browser for Windows, Mac, and Linux, with a total of seven security fixes, including one flaw for which it says an exploit exists in the wild. Tracked as CVE-2021-21224 , the flaw concerns a type confusion vulnerability in V8 open-source JavaScript engine that was reported to the company by security researcher Jose Martinez on April 5 According to security researcher  Lei Cao , the bug [ 1195777 ] is triggered when performing integer data type conversion, resulting in an out-of-bounds condition that could be used to achieve arbitrary memory read/write primitive. "Google is aware of reports that exploits for CVE-2021-21224 exist in the wild," Chrome's Technical Program Manager Srinivas Sista  said  in a blog post. The update comes after proof-of-concept (PoC) code exploiting the flaw published by a researcher named " frust " emerged on April 14 by taking advantage of the fact that the issue was addressed...